From VOA News:
Kurdish leaders cautioned Baghdad they will order their Peshmerga fighters to retaliate if Iraqi security forces launch any strikes on Kurdish-controlled territory.
The warning came after a weekend air raid on a town south of Kirkuk that left four people dead, including a 12-year-old.
Tensions flared between semi-autonomous Iraqi Kurdistan and the central government following an announcement late last month by Kurdish leader Massoud Barzani threatening to hold an independence vote, opening the door to a breakup of war-wracked Iraq.
The referendum is being planned by the Kurds, who have long dreamed of forming their own independent state, in the face of opposition from the Iraqi government, which says it would be unlawful, and despite the disapproval of the Obama administration.